Specifications:
Light type: Near-infrared light.
Infrared wavelengths: 850 nm.
Image resolution: 720*480.
Visible Vein Size: ≥1mm.
Accuracy: 0.25mm.
Depth of Visible Vein: ≤12mm.
Best projection distance: 200±20mm.
Image frame rate: 20FPS.
LED lifetime: 20000 hours.
Power Supply: DC 5V ≤3.5W.
Weight: 450g.
Dimension: 240x60x60mm (LxWxH).
Battery volume: 4400mAH.
Battery working time: ≈ 5 hours.
Charging time: ≈ 3 hours.
Battery detachable: Yes.
Operating Mode: Handheld or Suspension.